In both respiration and photosynthesis, the potential energy of a( is tapped to drive the phosphorylation of adp to atp. as h+ diffuses back (an enzyme complex embedded in the membrane), atp is produced.

the last one: artificial selection/genetic engineering

plant breeding is modifying the genetic composition of the plant - but this isn't cloning (which is specifically introducing a gene into a genome). but you are artificially selecting for the phenotype that you want.

the second one is literally genetic engineering - the gene would have been cloned first and then inserted or genetically engineered into the new plant cell (the cotton).